Are pre-cats really a bad design in the TR? | FerrariChat

Are pre-cats really a bad design in the TR?

Discussion in 'Boxers/TR/M' started by Natkingcolebasket69, Jul 17, 2017.

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  1. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #1 Natkingcolebasket69, Jul 17, 2017
    So... finally I am getting the cats back on my car from Ferrari...
    Firstly I am stunned of the cost of brand new cats: 12,000$ ...crazy to me...
    Now i am thinking compared to the straight pipe I had I will lose a bit of power and maybe sound too...
    I am then thinking of removing the precats. I have read a lot on this forum but I'm still trying to ascertain whether you do Gain any performance taking them off? What's ur experience?


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  2. ago car nut

    ago car nut F1 Veteran
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    #2 ago car nut, Jul 17, 2017
    Could you of purchased aftermarket hi-flow CATS for less?
     
  3. tvu

    tvu Formula 3
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    #3 tvu, Jul 17, 2017
    Not in CA.
     
  4. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #4 Natkingcolebasket69, Jul 17, 2017


    I am jut trying to see what other users think of the precats....I am reading they are a terrible design...most of them seems to get rotten with age and heat anyways


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  5. Mr.Chairman

    Mr.Chairman F1 Rookie

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    #5 Mr.Chairman, Jul 17, 2017
    Test pipes are fantastic. Great improvement. I would move out of California and slap some test pipes on that b*tch. So worth it.

    R
     
  6. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #6 Natkingcolebasket69, Jul 17, 2017
    Well currently it was sold to me with test pipes replacing the main cats. Those are being replaced with real cats for smog purposes.
    Are there test pipes for precats too? If you have main cats on why would it be prohibited in California to delete pre cats?


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  7. Mr.Chairman

    Mr.Chairman F1 Rookie

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    #7 Mr.Chairman, Jul 17, 2017
    Yes. Pre cat test pipes are great. Quicker throttle response and great sound. Those pre cats are very restrictive. They are junk.

    R
     
  8. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #8 Natkingcolebasket69, Jul 17, 2017
    Ok- I jut know hyperflows are super expensive I am thinking a custom shop could help me make something for like $500 but I may be delusional;)


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  9. Mr.Chairman

    Mr.Chairman F1 Rookie

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    #9 Mr.Chairman, Jul 17, 2017
    Delusional. Lol

    R
     
  10. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #10 Natkingcolebasket69, Jul 17, 2017
    Does anyone know where to buy good pre cats pipes? If Anybody have their for sales I'm taking;)


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  11. Mr.Chairman

    Mr.Chairman F1 Rookie

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    #11 Mr.Chairman, Jul 17, 2017
    They are getting harder to source. Tubi can make a set. Probably a 3 to 6 week turn around. Ut you better hurry. Everything shuts down it Italy for the month of August. They no longer list them on line. But if you call tubi USA they can make them. Also TRutlands had a set of factory ones for sale for ok money.


    R
     
  12. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #12 Natkingcolebasket69, Jul 17, 2017
    I thought factory ones are the ones I have which melt and inhibit performance?must have missed something


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  13. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    #13 Steve Magnusson, Jul 17, 2017
    I believe all US TR "should" have pre-cats (it's not just a CA requirement). The requirement to have them was driven by US emission standards starting to include limits for cold-running emissions vs time after cold start-up. Can't disagree that they are troublesome and prone to failure, but essentially all modern cars use the same concept where the catalytic element is mounted as close as possible to the exhaust ports. Your analysis is correct -- a warm-running TR with just main cats will meet its warm-running emission limits easily.
     
  14. Mr.Chairman

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    #14 Mr.Chairman, Jul 17, 2017
    Ferrari also sold pre cat test pipes. Hard to find but once in a while they pop up.

    R
     
  15. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #15 Natkingcolebasket69, Jul 17, 2017


    I love this forum; I feel like I'll end up someday an expert!


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  16. ago car nut

    ago car nut F1 Veteran
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    #16 ago car nut, Jul 18, 2017
    What about gutted pre cats?
     
  17. Melvok

    Melvok F1 World Champ
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    #17 Melvok, Jul 18, 2017
    Is there no in-between solution for TR's thinkable ... in 458 they sell 200 Cell versions that make noises!
     
  18. Mr.Chairman

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    #18 Mr.Chairman, Jul 18, 2017
    No good. Pipes are best. Air circulates in gutted pre cats.

    R
     
  19. 1TRICK6

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    #19 1TRICK6, Jul 27, 2017
    Last edited by a moderator: Sep 7, 2017
  20. ago car nut

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    #20 ago car nut, Jul 27, 2017
    I think I will fabricate a set for my TR.
     
  21. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #21 Natkingcolebasket69, Jul 27, 2017


    Looks really cool. Someone from forza Motorsport phoned me this morning to assist. The person I spoke to was not recommending me straight piping not just for emission perspective but also also that it would mess up the 02 sensor. Do you have the same issue.
    He also said there was no real gain power with test pipe or pre cat delete...
    I kind of find that hard to believe otherwise would most people do this?



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  22. 1TRICK6

    1TRICK6 Karting

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    #22 1TRICK6, Jul 27, 2017
    No issues and it's been about a year since I had no cats. As far as power gain, it's more responsive from mid to high rpms along with the rumble.
     
  23. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #23 Natkingcolebasket69, Jul 27, 2017


    I believe u;) I guess maybe wanted me to buy a new muffler instead lol


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  24. 1TRICK6

    1TRICK6 Karting

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    #24 1TRICK6, Jul 27, 2017
    Your right about that because not many if anyone sells the pre-cat delete pipes. I did see one last year and it was a factory pre-cat delete pipe selling for 2,500.00.
     
  25. Natkingcolebasket69

    Natkingcolebasket69 F1 World Champ

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    #25 Natkingcolebasket69, Jul 27, 2017


    Tubi exhaust 7k...for this price I'd rather have the stage 3 capristo.
    I think ur install looks really neat and I'm confident it's less than 1k. I love it.


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